Функция чтения cookies (JavaScript)

function readCookie(n) {

  n = n.replace(/([.*+?^=!:${}()|[\]\/\\])/g, "\\$1");

  n = RegExp("(?:^|;)\\s?" + n + "=(.*?)(?:;|$)", "i");

  return (n = document.cookie.match(n)) && unescape(n[1])

}

P.S.: This function reads browser cookies ;)